How much does it cost to take the RER train from Charles de Gaulle to Gare du Nord?

Question

If someone could tell me the cost (in Euro is fine), I would appreciate it. Approximately how long does the ride take?

Answer 1

It's 8.20 euros and takes around 30 to 45 minutes depending on if you get the express train or not.

Answer 2

I did this several years ago.  I'm not sure of the details.  Here's a website with current info:

http://www.paris.org/Accueil/Airport/

Answer 3

It's free.  Just jump over the turnstiles like everyone else.